Key holder



FIG. 1 is a front elevational view of a key holder showing my newdesign;

FIG. 2 is a side elevational view thereof, as viewed from the right ofFIG. 1; the left side elevational view being a mirror image of FIG. 2;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a rear elevational view thereof.

The ornamental design for a key holder, as shown and described.